57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_layout_ipc_VsyncParent_h
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#define mozilla_layout_ipc_VsyncParent_h
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#include "mozilla/layout/PVsyncParent.h"
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#include "mozilla/VsyncDispatcher.h"
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#include "nsCOMPtr.h"
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#include "mozilla/RefPtr.h"
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class nsIThread;
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namespace mozilla {
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namespace ipc {
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class BackgroundParentImpl;
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} // namespace ipc
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namespace layout {
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// Use PBackground thread in the main process to send vsync notifications to
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// content process. This actor will be released when its parent protocol calls
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// DeallocPVsyncParent().
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class VsyncParent final : public PVsyncParent,
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public VsyncObserver
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{
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friend class mozilla::ipc::BackgroundParentImpl;
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private:
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static already_AddRefed<VsyncParent> Create();
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VsyncParent();
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virtual ~VsyncParent();
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virtual bool NotifyVsync(TimeStamp aTimeStamp) override;
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virtual bool RecvRequestVsyncRate() override;
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virtual bool RecvObserve() override;
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virtual bool RecvUnobserve() override;
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virtual void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
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void DispatchVsyncEvent(TimeStamp aTimeStamp);
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bool mObservingVsync;
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bool mDestroyed;
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nsCOMPtr<nsIThread> mBackgroundThread;
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RefPtr<RefreshTimerVsyncDispatcher> mVsyncDispatcher;
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};
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} // namespace layout
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} // namespace mozilla
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#endif //mozilla_layout_ipc_VsyncParent_h
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